Fuel Savers Vol.3 Tips by Consumer Reports.

Keep your tires properly inflated. Underinflated tires require more energy to roll, which not only wastes fuel but also wears the tires faster. According to the EPA, a tire that is underinflated by only 2 pounds per square inch can cause a 1 percent increase in fuel consumption. Underinflated tires can also build up excess heat, which can lead to tire failure. Check your vehicle’s tire pressures at least once a month, when the tires are cold. Also, check the tires before and after long road trips. The recommended tire pressure is found on a label inside the car — usually in a doorjamb or inside the glove-box lid.